Joban Kaihatsu Co., Ltd. is a Japan-based company mainly engaged in the civil engineering business. The Company operates in five business segments. The Construction segment is primarily involved in the operation of construction and related business. The Civil Green Space segment is primarily engaged in the operation of civil, green space and related business. The Environment-related segment is engaged in the construction of water treatment facilities, the measuring, analysis and testing of various environmental factors, the management of buildings and the maintenance of facilities. The Real Estate segment is primarily involved in the sale of real estate developed by the Company. The Others segment is engaged in the provision of security services for facilities.